Finding the Fourth Proportional to 9,157.74, 12,637.98 and 5,973.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,157.74 : 12,637.98 = 5,973.12 : x
2. Step 2: Convert to fraction form
   9,157.74/12,637.98 = 5,973.12/x
3. Step 3: Cross multiply
   9,157.74x = 12,637.98 × 5,973.12
4. Step 4: Simplify right side
   9,157.74x = 75,488,171.10
5. Step 5: Solve for x
   x = 75,488,171.10/9,157.74
6. Step 6: Final answer
   x = 8,243.10